Microchip LX7180A Manual

Microchip Ikke kategoriseret LX7180A

Læs gratis den danske manual til Microchip LX7180A (25 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 15 personer og har en gennemsnitlig bedømmelse på 4.9 stjerner ud af 8 anmeldelser. Har du et spørgsmål om Microchip LX7180A, eller vil du spørge andre brugere om produktet?

Download PDF

Side 1/25

June 2015 Rev. 1.2 www.microsemi.com 1

4A Step Down Regulator-

VIN

GND

10 µF

X5R

500 k

PGOOD

PVIN

PGND AGND

SDA

0.47 µH

22 µF,

X5R

VOUT

GND

1, 10

2, 11

3, 12

LX7180A

SCL 5

10 µF

X5R

Figure 1 · Typical Application of LX7180A

Features

 0- -4 A Step down Regulator

 Operational Input Supply Voltage Range:

3.0 V 5.5 V (short durations to 6.5 V) -

 Hysteretic Control Offers Best Transient Response

 PWM Switching at a Constant 1.65 MHz

 Power Save Mode (PSM) can be Selected to

Improve Light Load Efficiency.

 O100% atio Duty R peration

 Input Under Voltage and Over Voltage Protection

 Enable and Power Good Function

 I2C Serial Interface at 3.4 Mbps

 S - Internal oft start

 C - -ycle by Cycle Over Current Protection

 Hiccup Mode Protects Against Short Circuit Faults

 Seven Bit Adjustable Reference Voltage via I2 C Bus

 RoHS Compliant

Applications

 High Performance HDD

 LCD TV

 Notebook/Netbook

 Server and Workstations

 Video Cards

 PoE Powered Devices Smart Phone

Description

The LX7180A is a 4A step-

down regulator with

integrated MOSFETs packaged in a space saving

QFN12 2 mm x 2 mm for today’s mobile devices. It uses

an ultra-

fast, constant frequency hysteretic control

method to minimize external filter components while

maintaining excellent regulation. The LX7180A reference

voltage is programmable from 0.6 V to 1.195 V through a

high speed (up to 3.4 MHz), bi directional I- 2C bus.

The LX7180 operates from 3 V to 5.5 V rails and outputs

0.6 V to 100% of the input voltage.

Cycle-by-cycle current limiting protects against over-

current conditions. Hiccup mode provides protection for

heavy over-load or short-

circuit faults. Thermal

protection shuts down the regulator under over-

temperature

conditions. Over voltage conditions will

immediately shut off the output to protect against

permanent damage. The LX7180A automatically restarts

when all fault conditions are cleared.

LX7180A

4 -A Step Down Regulator

Pin Configuration and Pinout

Figure 2 · Pinout Top View

Marking: x” is the 2LSB bits of the binary “I2C slave Address

“1” is for the set output voltage

YWWL = Year/Week/Lot Code

RoHS / Pb-free Matte Tin Pin Finish

Ordering Information

Note: 1. I2C* Consult factory for other slave address and set output voltage options.

2. I2C“x” is the 2 LSB bits of the binary slave address (0 to 3).

3. “y” is the set output voltage (0 is 0.6 V, 2 is 0.95 V, 3 is 0.97 V, 1 is 0.9 . V)

Ambient

Temperature Type Package

Slave

Address

Set

Output

Voltage

Part Number Packaging

Type

0 °C °C to 85

RoHS

Compliant,

Pb-free

QFN 2X2 mm

12L

0.9 V LX7180A 01CLQ-

LX7180A 11CLQ -

LX7180A 21CLQ -

LX7180A 31CLQ -

LX7180A - xyCLQ*

Bulk

0.9 V LX7180A 01CLQ - - TR

LX7180A 11CLQ - - TR

LX7180A 21CLQ - - TR

LX7180A 31CLQ - - TR

LX7180A - - xyCLQ TR*

Tape and Reel

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	LX7180A

Har du brug for hjælp?

Hvis du har brug for hjælp til Microchip LX7180A stil et spørgsmål nedenfor, og andre brugere vil svare dig

Dit navn*

Din email*

Skriv dit spørgsmål her

Ikke kategoriseret Microchip Manualer

Microchip AT7913 Manual

1 September 2025

Microchip ATmega1281 Manual

19 Juli 2025

Microchip ATtiny461 Manual

19 Juli 2025

Microchip ATxmega128D3 Manual

19 Juli 2025

Microchip ATxmega128D4 Manual

19 Juli 2025

Microchip ATTINY28 Manual

19 Juli 2025

Microchip ATTINY861 Manual

19 Juli 2025

Microchip ATmega1280 Manual

19 Juli 2025

Microchip ATtiny84A Manual

19 Juli 2025

Microchip ATmega645P Manual

19 Juli 2025

Ikke kategoriseret Manualer

Nyeste Ikke kategoriseret Manualer

Elektrobock PT44 Manual

14 September 2025

BSS Audio FDS-366T Manual

14 September 2025

Systemair Airline R-114 Manual

14 September 2025

IFM SU2031 Manual

14 September 2025

Morel Tempo Ultra Integra 502 Manual

14 September 2025

IMC Networks 232CL9R Manual

14 September 2025

Varta Speed Charger 57955 Manual

14 September 2025

Melissa & Doug 9336 Manual

14 September 2025

Opus dataPREDATOR Manual

13 September 2025

Varta Wireless Power Bank 20000 57909 Manual

13 September 2025